<template>
  <div>
    <!--头部面包屑-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!--卡片-->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>

        <el-col :span="4">
          <el-button type="primary" @click="dialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>

      <!--渲染用户列表-->
      <el-table :data="userList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!--修改按钮-->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <!--删除按钮-->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <!--分配角色按钮-->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>  
          </template>
        </el-table-column>
      </el-table>

      <!--页码-->
      <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
    </el-card>

    <!--添加用户  隐藏部分-->
    <el-dialog
  title="添加用户"
  :visible.sync="dialogVisible"
  width="36%"
  @close="addDialogClose"
  >
  <!--添加用户表单-->
<el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
  <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
</el-form>
<!--底部区域-->
  <span slot="footer" class="dialog-footer">
    <el-button @click="dialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>

<!--修改用户信息  隐藏部分-->
    <el-dialog
  title="修改用户信息"
  :visible.sync="editDialogVisible"
  width="50%"
  @close="editDialogClosed"
  >
  <!--修改用户表单-->
<el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
  <el-form-item label="用户名">
    <el-input v-model="editForm.username" disabled></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="editForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="editForm.mobile"></el-input>
  </el-form-item>
</el-form>
<!--底部区域-->
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>

<!--分配角色  隐藏部分-->
    <el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%"
  @close="setRoleDialogClosed"
  >
<p>当前的用户：{{userInfo.username}}</p>
<p>当前的角色: {{userInfo.role_name}}</p>
<p>分配新角色：
   <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
</p>
  <!--底部区域-->
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 1.验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }

     // 2.验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }

    return {
      queryInfo: {
        //搜索栏内数据
        query: "",
        //当前页码
        pagenum: 1,
        //页码大小
        pagesize: 2,
      },
      userList: [],
      //总数据条数
      total: 0,
      dialogVisible: false,
      //添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      //添加 表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "长度在 3 到 10 个字符",
            trigger: "blur",
          },
        ],
         password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "长度在 6 到 15 个字符",
            trigger: "blur",
          },
        ],
         email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
         mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },

      //修改的校验
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
         mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      //控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //查询到的用户信息对象
      editForm: {},

      //控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      //需要被分配角色的用户信息
      userInfo: {},
      //所有角色的数据列表
      rolesList: [],
      //已选中的角色id值
      selectedRoleId: ''
    };


  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status != 200)
        return this.$message.error("获取用户列表失败！");
      this.userList = res.data.users;
      this.total = res.data.total;
    },

    //监听 pagesize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    //监听页码值改变的事件
    handleCurrentChange(newSize) {
      this.queryInfo.pagenum = newSize
      this.getUserList()
    },

    // 监听 switch 开关状态的改变
    async userStateChanged(userinfo) {
      console.log(userinfo)
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },

    //取消关闭  表单内容重置
    addDialogClose() {
        this.$refs.addFormRef.resetFields();
      },

    //添加用户
    addUser() {
      this.$refs.addFormRef.validate(async valid =>{
          console.log(valid);
          if(valid){
             const {data: res} = await this.$http.post("users",this.addForm);
             console.log(res)
             if(res.meta.status !== 201) return this.$message.error(res.meta.msg)
             this.$message.success('创建成功！')
             //成功之后隐藏添加对话框
             this.dialogVisible = false
             //重新获取用户列表
             this.getUserList()
          }else{
            return;
          }
        })
    },

    //展示编辑用户的对话框
    async showEditDialog(id) {
      const {data: res} = await this.$http.get("users/"+id)
      if(res.meta.status != 200) {
          return this.$message.error(res.meta.msg)
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },

     //监听修改用户对话框的关闭事件
     editDialogClosed() {
          this.$refs.editFormRef.resetFields();
     },

     //修改用户信息并提交
     editUserInfo() {
        this.$refs.editFormRef.validate( async valid =>{
          if(valid){
            const {data: res} = await this.$http.put("users/" + this.editForm.id,
            {
            email: this.editForm.email,
            mobile: this.editForm.mobile
            })
            if(res.meta.status != 200){
              return this.$message.error('更新用户信息失败！')
            }
            //关闭对话框
            this.editDialogVisible = false
            //重新查询
            this.getUserList()
            //提示成功
            return this.$message.success('更新用户信息成功！')
          }
        })
     },

     //根据ID删除对应的用户信息
     async removeUserById(id) {
        //先弹框询问用户是否删除
         const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        //如果用户确认删除，则返回值为confirm
        //如果用户取消了删除，则返回值为字符串cancel
        //console.log(confirmResult)
        if(confirmResult != 'confirm'){
          return this.$message.info('已取消删除！')
        }
        const {data: res} = await this.$http.delete("users/"+ id)
        if(res.meta.status != 200) return this.$message.error('删除失败！')
        this.$message.success('删除成功！')
        this.getUserList()
     },
     
     //展示分配角色对话框
     async setRole(userInfo) {
       this.userInfo = userInfo

       const {data: res} = await this.$http.get("roles")
       if(res.meta.status != 200) return res.$message.error("获取角色列表失败！")
       this.rolesList = res.data
       console.log(this.rolesList)
       this.setRoleDialogVisible = true
     },
     
     //点击按钮， 分配角色
      async saveRoleInfo() {
        if(!this.selectedRoleId){
          return res.$message.error('请选择要分配的角色！')
        }
        const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`,{
          rid: this.selectedRoleId
        })
        if(res.meta.status !== 200){
          return res.$message.error('更新角色失败！')
        }
        this.$message.success('更新角色成功！')
        this.getUserList
        this.setRoleDialogVisible = false
      },

      //监听   分配角色对话框的关闭事件
      setRoleDialogClosed() {
        this.selectedRoleId = ''
        this.userInfo = {}
      }
  },

};
</script>

<style lang="less" scoped>
</style>